Draftsman&#39;s pen-inking device.



PATENTED JULY 14, 1903'.

H. W. H. POWBL. DRAFTSMANS PEN INKING DEVICE.

. APPLICATION FILED MAY 23, 1900.

30 MODEL.

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Fatented July 14, I903 IIARFORD WV. HARE POWEL, OF NEWPORT, RHODE ISLAND.

DRAFTSMANS PEN-INKING DEVICE.

S1?ECIFICATION formingpart of Letters Patent No. 733,594, dated July 14, 1903.

Application filed May 23,1900.

To all whom it wmy concern:

Be it known that I, HARFORD W. HARE POWEL, a citizen of the United States of America, residing in the city and county of Newport, in the State of Rhode Island, have invented certain new and useful Improvements in Draftsmens Pen-Inking Devices,

of which the following, reference being had to the accompanying component drawings, is a true and exact description.

My present invention relates to devices for inking draftsmens pens, and is of the general character shown and described in my prior application for United States Letters Patent for a similarly-entitled invention filed by me on the 27th day of April, 1899, Serial No. 714,659.

The object of my present invention is' to afford draftsmen improved facilities for ap plying ink, when in the act of drawing, to their pens.

Further objects are to provide means for transferring ink in charges with the pen-holding hand from closed or deep vessels, such as bottles, 850., to relatively fixed and exposed pen-charging blades and also in instances to regulate the amount of charge, together with such further objects as will be apparent from this specification as a whole.

The new and useful features of my present invention will be found segregated in the concluding claims.

Reference now being had to the drawings aforesaid, they will be found to illustrate said invention as follows:

Figure 1 is a sectional side elevation of a simple embodiment of my present invention. Fig. 2 is a plan view of the same, the line 1 1 denoting plane of section Fig. 1. Fig. 3 is a modification in side elevation. Fig. l isa side elevation of a further modification more amplified and as to its cover, ink-receptacle, and pump-cylinder also given in median section analogous to the sections of Fig. 1 aforesaid. Fig. 5 is a plan view of parts of the v device shown in Fig. 4 above the line 5 5 thereof.

In Figs. 1 and 2, IV is an ink-bottle, into the neck WV of which bottle there is fixed a tightly-fitting stopper or cork Vertically transfixing and fitting tightly in this stopper IV are, first, a bent or rightangle elbow-pipe Serial No. 17,647. (No model.)

b, and, second, means for transferring through said pipe b a portion or portions ofthe' ink I in said well, said means consisting of-cylinder C, having its open mouth 0 close to bottom 10 of bottle IV, and in said cylinders concentrically apertured and guiding head 0 a freesliding piston-rod p, which rod 1), being attached (as by riveting a shouldered tang) to piston P, thence extends upward to a convenient height, and by shoulder-screw p is attached to finger-keyK.

Between and abutted on key K and thepreferably flanged top 0 of cylinder Cthere is coiled, with freedom for condensation, a spiral spring S. The piston I aforesaid is fitted, as by the conventional illustrated packing shown in Fig. 1, to Work air-tight in cylinder 0. Suflicient ink I being in bottle 7 to submerge both open bottom I) of pipe I) and open mouth 0 of cylinder (l, or ink to fill the bottle IV to level of line i in Fig. 1, a light downward pressure on key K can be made to compress spring S and by driving piston P downward cause such pressure in the bottles contents as will force some of the ink I to mount in pipe I), also in accordance with extent of piston Ps movement to cause expulsion of some of said ink from the exposed outlet of pipe I). Now this exposed outlet of pipe I), being small and at a proper relative distance from key K, affords the draftsinan the following novel opportunity for securing pen charges of ink,

viz: Holding his bow-pen in the usual way by the thumb and first and second fingers of, say, his right hand, the draftsman having a device such as above described in reach can, with his little or ring finger of the same hand, depress key K against spring S sufliciently to cause ink to flow from the exposed end B of pipe I), and while he has in key K a point of rest forthe small fingersof said hand, very tacle the draftsman can proceed to his drawing until another charge of ink is required, when by a repetition of above-described onehand operation he can, and thereafter also so long as the ink I responds to the function of piston P, recharge his pen as desired.

In order to further facilitate the pen-charging act and also on occasion to clean out dried ink, &c., from between the pen-blades, I preferably cut off diagonally and flatten or palmate the muzzle of the exposed dischargepipe I) or give to it the blade-like character shown at B in Figs. 1 and 2 aforesaid.

In order to provide for drip from blade B, I also preferably, although not indispensably, provide a catch-basin, as E. This basin may be of any suitable material, as glass or metal, and, if desired, be fixable to the inkreceptacle 7, as by forming in said bottle a vent-tunnel or inverted hollow cone 20', with which a preferably vented male cone e, formed on and as an integral extension at the lowest part of basin E, fits tight. By these means and a removable taper plug T, fittingtight to the vent e of basin E, I contrive on occasion to return collections of drippings to receptacle IV, and yet, in interim, by obvious use of plug T preserve said receptacles air-tight character. If basin E is removed, vent 10 can be corked, as required, in any ordinary way.

Operated, the spring S on release of pressure from key K causes return of parts to first position.

In Figs. 4, 5, I have shown a screw-capped ink-pot XV", provided with an air-tight packing-gromct G and screw-cap C, and instead of separate piston and pipe ink-transferring parts a valve-pump V. N ow this pump, save that its valves are situated low, as shown, for the sake of their being kept immersed in ordinary use, so far as it is a pump, needs no further description than to say it is here of the lift variety, as shown, but is to be noted as fixed tightsay by soldering at r to the presumably metallic cap C aforesaid and has for the one-hand manipulation of both the pen and the ink-applying device peculiar to my invention the following equipment: first, an offset or elbow outlet-pipe 12, disposed as best understood by viewing Figs. a and 5 in connection; second, a cap r, through which piston-rod p emerges in usual way, said cap having integral with it a bracketgudgeonr and threaded lug it in which latter is screwed a capstan-head bank-screw s. This screw as adjusted serves to define the throw or stroke of a lever L, by which the pump is operated, as follows: Lever L, pivoted to gudgeon r aforesaid, not only swings in the plane of screw .5, but by a vertical slot Z,

formed in its own body, (see Fig. 5,) straddles with freedom for working the flattened head h of pump-rod 1)", and by transverse slots Z (see Fig. at) engages in a sliding manner with a transverse pump-rod engaging-pin 7c. The fulcrum end of lever L by a suitable engagement, as ring 0, engages with an extensible spiral spring 8*, attached in its turn to cap 0 by cap-ring 1'. By this pump equipment the draftsm an can in manner analogous to and by the pen hand-fingers aforesaid in relation to Figs. 1 and 2 stretch spring S and on its recoil transfer ink from pot IV to his pen.

As a convenience pump-lever L has. on its workable end a finger-key K This key also acts as a steady-rest to the pen-hand in the pencharging act, for which purpose the spacing and relation (shown in Figs. &, 5) of the blade B and key K are for the pen-hand of the applicant, a full-size well-proportioned illustration. It is obvious charges of ink from this machine may be readily and exactly graduated by rotation of bank-screw s.

In order to facilitate the application of charges to fine pens, I preferably form the pumps exposed outlet, which in all the forms I call a blade, as illustrated at B ,Figs 4 and 5 -that is to say, in words, a small tubular orifice merging into a diametrically larger flattened, or pahnate, unilateral extension whereon the ink charges may course, as expelled, directly to the straddled pen-blades, or, when the acts of inkexpulsion and pencontracting are not exactly contemporaneous, find a transitory lodgment thereon until said charges are transferred to and by the contacting of the blade or blades of such contact ing, straddled, charge-seeking blades of the designated sort of pen.

In Fig. 3 an elementary yet eflicient modification is illustrated. It consists of a pipette or dropper D, fitted with some friction, but yet with a yieldable grip, in a sleeve-bracket X. This bracket I supply with a means of attachment, as screw :0 and steady-pin :13, so that it may be secured at will to any suitable base, as the common form of draftsmans ink grinder and well IV also shown in Fig. 3. The cranked bulb bearing end cl of pipette D may then be used as a convenient means for partially rotating the pipette in the sleeve of bracket X, and by bringing it to the position indicated by broken lines in Fig. 5, and the usual compression and release of bulb Y, cause such ink as has been prepared and caught in basin 10 of grinder to be sucked up in whole or part and stored within the cavity of the pipette. This done, the cranked bulb end (1 again aifords means to bring the pipette D back to its first-the shownand normal position. In this position and condition of ink-storage a grip taken on the pipettes collapsible bulb between the tips of the small and free fingers of the penholding hand and the palm of the same will enable the draftsman to cause ink to be ejected between the blades of his pen, (which pen held by the great fingers and thumb of the same hand he is then straddling over the nozzle, or as it is in my nomenclature called blade, B of the device,) and so to charge said pen.

Between the acts the outlets of the inkejecting parts of all the several forms shown in Figs. 1, 2, 3, 4, and 5 in practice can be made so small as practically to exclude dust. The pipes, &c., connected to the blades of forms shown in Figs. 1, 2 and 3, 4, being immersed are, so far as the air contained in their respective ink-receptacles is concerned, obviously water sealed, and in the case of the form Fig. 3 the downward portion of its blade B (here in shape a tube) and the closed character of the ink-receptacle (which is the pipette) makes not only awater seal, but one which being right at the nozzle tends to prevent drying and gumming up of the outletorifice. Should the outlets of the other blades choke, they may be cleared out readily, as by probing with a bristle, 850.

Having now fully described my said invention, what I desire to secure byLetters Patent of the United States, and hereby claim, is-

1. In an inking device for draftsmens pens, the combination with an ink-receptacle, of a blade adapted to be straddled by the pen and whereon ink may be exposed, an ink-delivering duct for said blade, and means, operable when the receptacle is resting upon its base, for transferring ink from the ink-containing well of said receptacle to the blade by way of the duct; substantially as described.

2. In an inking device for draftsmens pens, the combination with an ink-receptacle, of a blade adapted to be straddled bythe pen and whereon ink may be exposed, an ink-delivering duct leading to the blade and dippinginto the ink-containing well of the receptacle, and means, operable when the receptacle is resting upon its base, for transferring ink from the ink-containing region or well to the blade by way of the duct; substantially as dc scribed.

3. In an inking device for draftsmens pens, the combination with an ink-receptacle, of a blade adapted to be straddled by the pen, and a pump operative to transfer ink from the receptacle to the blade, the pump-operating means being situated within reach of the blade of a pen held by the operating hand as described; substantially as described.

4. The combination of an ink-receptacle, a blade whereon ink may be exposed, means for transferring ink in charges to said blade, and valve mechanism for preventing backfiow of the ink; substantially as described.

5. The combination of an ink-receptacle, a blade whereon ink may be exposed, a pump connecting operatively with the inkcontaining well of said receptacle and delivering ink to the blade, a key, mechanism operatively connecting said key and pump, and mechanism for automatically restoring said key to its normal position when released; substantially as described.

6. The combination of an ink-receptacle, a blade whereon ink may be exposed, a valvular pump extending below the ink-level of said receptacle, and adapted to supply ink therefrom to the blade, and an actuating-key 

